Support Support Downloads Knowledge Base Case Manager My Juniper Community

Knowledge Base

Search our Knowledge Base sites to find answers to your questions.

Ask All Knowledge Base Sites All Knowledge Base Sites JunosE Defect (KA)Knowledge BaseSecurity AdvisoriesTechnical BulletinsTechnotes Sign in to display secure content and recently viewed articles

[ACX] Understanding "request system reboot" behavior in ACX5448

0

0

Article ID: KB34880 KB Last Updated: 22 Nov 2019Version: 1.0
Summary:

This article explains the behavior of the Command Line Interface knob request system reboot on the ACX5448 platform.

Symptoms:

In ACX5448, when the request system reboot command is executed, both Junos OS and Linux hosts are rebooted as shown below:

root@acx5448> show system uptime 
Current time: 2019-08-01 18:42:10 NZST
Time Source:  NTP CLOCK 
System booted: 2019-08-01 18:34:53 NZST (00:07:17 ago)
Protocols started: 2019-08-01 18:35:30 NZST (00:06:40 ago)
Last configured: 2019-07-31 23:16:29 NZST (19:25:41 ago) by root
 6:42PM  up 7 mins, 1 users, load averages: 0.28, 0.40, 0.27

root@acx5448>show vmhost uptime 
 Vmhost Current time: 2019-08-01 18:41:32+12:00
 Vmhost Uptime: 
       18:41:32 up 7 min, 0 users, load average: 3.94, 3.26, 1.63
 Vmhost last reboot reason: 0x1:power cycle/failure

Cause:

The ACX5448 Routing Engine model leverages the NG-RE architecture (See TN303 - Next Generation Routing Engine - Technical Introduction). As per the NG-RE architecture, the Junos OS runs as a Virtual Machine (VM) on top of a Linux-based host (VM Host). In the NG-RE architecture, if the request system reboot command is executed, only the Junos VM will be rebooted but not the Linux host. The command to restart the VM host in this case would be request vmhost reboot.

However, in the ACX5448 platform, the behavior is slightly different in that both the Junos OS and Linux host are rebooted when the request system reboot command is executed.

Solution:

This behavior is as per design of the ACX5448 platform and is therefore working as expected.

Comment on this article > Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

Getting Up and Running with Junos

Getting Up and Running with Junos Security Alerts and Vulnerabilities Product Alerts and Software Release Notices Problem Report (PR) Search Tool EOL Notices and Bulletins JTAC User Guide Customer Care User Guide Pathfinder SRX High Availability Configurator SRX VPN Configurator Training Courses and Videos End User Licence Agreement Global Search